Just curious what happens if I am late returning my rental car? I have a reservation with Alamo and the drop-off time is 1:00; however, my flight time has changed and now we need to drop the car off at 4:00. I tried to modify my reservation (which I had done once before with no trouble) but I am getting a price that is about $300 more than the original and the Chevy Equinox is not showing as available. Will they charge me the hourly rate if I am late or will they tack on another day at full price (which would probably negate the great price I got)? Thanks.